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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef CAFFE_SGD_SOLVERS_HPP_</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define CAFFE_SGD_SOLVERS_HPP_</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#include &quot;caffe/solver.hpp&quot;</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacecaffe.html">caffe</a> {</div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Dtype&gt;</div><div class="line"><a name="l00016"></a><span class="lineno"><a class="line" href="classcaffe_1_1SGDSolver.html">   16</a></span>&#160;<span class="keyword">class </span><a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a> : <span class="keyword">public</span> <a class="code" href="classcaffe_1_1Solver.html">Solver</a>&lt;Dtype&gt; {</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a>(<span class="keyword">const</span> SolverParameter&amp; param)</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;      : <a class="code" href="classcaffe_1_1Solver.html">Solver&lt;Dtype&gt;</a>(param) { PreSolve(); }</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; param_file)</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;      : <a class="code" href="classcaffe_1_1Solver.html">Solver&lt;Dtype&gt;</a>(param_file) { PreSolve(); }</div><div class="line"><a name="l00022"></a><span class="lineno"><a class="line" href="classcaffe_1_1SGDSolver.html#afea4a316da9b743353d6d381d3ffce24">   22</a></span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="classcaffe_1_1SGDSolver.html#afea4a316da9b743353d6d381d3ffce24">type</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="stringliteral">&quot;SGD&quot;</span>; }</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;  <span class="keyword">const</span> vector&lt;shared_ptr&lt;Blob&lt;Dtype&gt; &gt; &gt;&amp; history() { <span class="keywordflow">return</span> history_; }</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;  <span class="keywordtype">void</span> PreSolve();</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;  Dtype GetLearningRate();</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ApplyUpdate();</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Normalize(<span class="keywordtype">int</span> param_id);</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> Regularize(<span class="keywordtype">int</span> param_id);</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ComputeUpdateValue(<span class="keywordtype">int</span> param_id, Dtype rate);</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ClipGradients();</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> SnapshotSolverState(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; model_filename);</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> SnapshotSolverStateToBinaryProto(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; model_filename);</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> SnapshotSolverStateToHDF5(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; model_filename);</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> RestoreSolverStateFromHDF5(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; state_file);</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> RestoreSolverStateFromBinaryProto(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; state_file);</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;  <span class="comment">// history maintains the historical momentum data.</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;  <span class="comment">// update maintains update related data and is not needed in snapshots.</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;  <span class="comment">// temp maintains other information that might be needed in computation</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;  <span class="comment">//   of gradients/updates and is not needed in snapshots</span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;  vector&lt;shared_ptr&lt;Blob&lt;Dtype&gt; &gt; &gt; history_, update_, temp_;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;  DISABLE_COPY_AND_ASSIGN(<a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a>);</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;};</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Dtype&gt;</div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classcaffe_1_1NesterovSolver.html">   49</a></span>&#160;<span class="keyword">class </span><a class="code" href="classcaffe_1_1NesterovSolver.html">NesterovSolver</a> : <span class="keyword">public</span> <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a>&lt;Dtype&gt; {</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1NesterovSolver.html">NesterovSolver</a>(<span class="keyword">const</span> SolverParameter&amp; param)</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param) {}</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1NesterovSolver.html">NesterovSolver</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; param_file)</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param_file) {}</div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classcaffe_1_1NesterovSolver.html#a034bfdd0f75b9f29ec0b61393aea8387">   55</a></span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="classcaffe_1_1NesterovSolver.html#a034bfdd0f75b9f29ec0b61393aea8387">type</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="stringliteral">&quot;Nesterov&quot;</span>; }</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ComputeUpdateValue(<span class="keywordtype">int</span> param_id, Dtype rate);</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;  DISABLE_COPY_AND_ASSIGN(<a class="code" href="classcaffe_1_1NesterovSolver.html">NesterovSolver</a>);</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;};</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Dtype&gt;</div><div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classcaffe_1_1AdaGradSolver.html">   64</a></span>&#160;<span class="keyword">class </span><a class="code" href="classcaffe_1_1AdaGradSolver.html">AdaGradSolver</a> : <span class="keyword">public</span> <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a>&lt;Dtype&gt; {</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1AdaGradSolver.html">AdaGradSolver</a>(<span class="keyword">const</span> SolverParameter&amp; param)</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param) { constructor_sanity_check(); }</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1AdaGradSolver.html">AdaGradSolver</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; param_file)</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param_file) { constructor_sanity_check(); }</div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classcaffe_1_1AdaGradSolver.html#a8d1731c3c53568344ba2745e3d9aa8d9">   70</a></span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="classcaffe_1_1AdaGradSolver.html#a8d1731c3c53568344ba2745e3d9aa8d9">type</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="stringliteral">&quot;AdaGrad&quot;</span>; }</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ComputeUpdateValue(<span class="keywordtype">int</span> param_id, Dtype rate);</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  <span class="keywordtype">void</span> constructor_sanity_check() {</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    CHECK_EQ(0, this-&gt;param_.momentum())</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        &lt;&lt; <span class="stringliteral">&quot;Momentum cannot be used with AdaGrad.&quot;</span>;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;  }</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  DISABLE_COPY_AND_ASSIGN(<a class="code" href="classcaffe_1_1AdaGradSolver.html">AdaGradSolver</a>);</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;};</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Dtype&gt;</div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="classcaffe_1_1RMSPropSolver.html">   84</a></span>&#160;<span class="keyword">class </span><a class="code" href="classcaffe_1_1RMSPropSolver.html">RMSPropSolver</a> : <span class="keyword">public</span> <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a>&lt;Dtype&gt; {</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1RMSPropSolver.html">RMSPropSolver</a>(<span class="keyword">const</span> SolverParameter&amp; param)</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param) { constructor_sanity_check(); }</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1RMSPropSolver.html">RMSPropSolver</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; param_file)</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param_file) { constructor_sanity_check(); }</div><div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classcaffe_1_1RMSPropSolver.html#a3be4ffd28e5aed1e2c02c5f9225986ba">   90</a></span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="classcaffe_1_1RMSPropSolver.html#a3be4ffd28e5aed1e2c02c5f9225986ba">type</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="stringliteral">&quot;RMSProp&quot;</span>; }</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ComputeUpdateValue(<span class="keywordtype">int</span> param_id, Dtype rate);</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;  <span class="keywordtype">void</span> constructor_sanity_check() {</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    CHECK_EQ(0, this-&gt;param_.momentum())</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        &lt;&lt; <span class="stringliteral">&quot;Momentum cannot be used with RMSProp.&quot;</span>;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    CHECK_GE(this-&gt;param_.rms_decay(), 0)</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        &lt;&lt; <span class="stringliteral">&quot;rms_decay should lie between 0 and 1.&quot;</span>;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    CHECK_LT(this-&gt;param_.rms_decay(), 1)</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        &lt;&lt; <span class="stringliteral">&quot;rms_decay should lie between 0 and 1.&quot;</span>;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;  }</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;  DISABLE_COPY_AND_ASSIGN(<a class="code" href="classcaffe_1_1RMSPropSolver.html">RMSPropSolver</a>);</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;};</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Dtype&gt;</div><div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="classcaffe_1_1AdaDeltaSolver.html">  107</a></span>&#160;<span class="keyword">class </span><a class="code" href="classcaffe_1_1AdaDeltaSolver.html">AdaDeltaSolver</a> : <span class="keyword">public</span> <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a>&lt;Dtype&gt; {</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1AdaDeltaSolver.html">AdaDeltaSolver</a>(<span class="keyword">const</span> SolverParameter&amp; param)</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param) { AdaDeltaPreSolve(); }</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1AdaDeltaSolver.html">AdaDeltaSolver</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; param_file)</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param_file) { AdaDeltaPreSolve(); }</div><div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="classcaffe_1_1AdaDeltaSolver.html#a645d215770c417a00f9d38482adb2ec0">  113</a></span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="classcaffe_1_1AdaDeltaSolver.html#a645d215770c417a00f9d38482adb2ec0">type</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="stringliteral">&quot;AdaDelta&quot;</span>; }</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;  <span class="keywordtype">void</span> AdaDeltaPreSolve();</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ComputeUpdateValue(<span class="keywordtype">int</span> param_id, Dtype rate);</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;  DISABLE_COPY_AND_ASSIGN(<a class="code" href="classcaffe_1_1AdaDeltaSolver.html">AdaDeltaSolver</a>);</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;};</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Dtype&gt;</div><div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="classcaffe_1_1AdamSolver.html">  131</a></span>&#160;<span class="keyword">class </span><a class="code" href="classcaffe_1_1AdamSolver.html">AdamSolver</a> : <span class="keyword">public</span> <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver</a>&lt;Dtype&gt; {</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1AdamSolver.html">AdamSolver</a>(<span class="keyword">const</span> SolverParameter&amp; param)</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param) { AdamPreSolve();}</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classcaffe_1_1AdamSolver.html">AdamSolver</a>(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; param_file)</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;      : <a class="code" href="classcaffe_1_1SGDSolver.html">SGDSolver&lt;Dtype&gt;</a>(param_file) { AdamPreSolve(); }</div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="classcaffe_1_1AdamSolver.html#a3ad927ab9d19ebf2fe2b8a2e9101cb3e">  137</a></span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="classcaffe_1_1AdamSolver.html#a3ad927ab9d19ebf2fe2b8a2e9101cb3e">type</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="stringliteral">&quot;Adam&quot;</span>; }</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;  <span class="keywordtype">void</span> AdamPreSolve();</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ComputeUpdateValue(<span class="keywordtype">int</span> param_id, Dtype rate);</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;  DISABLE_COPY_AND_ASSIGN(<a class="code" href="classcaffe_1_1AdamSolver.html">AdamSolver</a>);</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;};</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;}  <span class="comment">// namespace caffe</span></div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="preprocessor">#endif  // CAFFE_SGD_SOLVERS_HPP_</span></div><div class="ttc" id="classcaffe_1_1NesterovSolver_html_a034bfdd0f75b9f29ec0b61393aea8387"><div class="ttname"><a href="classcaffe_1_1NesterovSolver.html#a034bfdd0f75b9f29ec0b61393aea8387">caffe::NesterovSolver::type</a></div><div class="ttdeci">virtual const char * type() const</div><div class="ttdoc">Returns the solver type. </div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:55</div></div>
<div class="ttc" id="namespacecaffe_html"><div class="ttname"><a href="namespacecaffe.html">caffe</a></div><div class="ttdoc">A layer factory that allows one to register layers. During runtime, registered layers can be called b...</div><div class="ttdef"><b>Definition:</b> blob.hpp:14</div></div>
<div class="ttc" id="classcaffe_1_1SGDSolver_html_afea4a316da9b743353d6d381d3ffce24"><div class="ttname"><a href="classcaffe_1_1SGDSolver.html#afea4a316da9b743353d6d381d3ffce24">caffe::SGDSolver::type</a></div><div class="ttdeci">virtual const char * type() const</div><div class="ttdoc">Returns the solver type. </div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:22</div></div>
<div class="ttc" id="classcaffe_1_1SGDSolver_html"><div class="ttname"><a href="classcaffe_1_1SGDSolver.html">caffe::SGDSolver</a></div><div class="ttdoc">Optimizes the parameters of a Net using stochastic gradient descent (SGD) with momentum. </div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:16</div></div>
<div class="ttc" id="classcaffe_1_1Solver_html"><div class="ttname"><a href="classcaffe_1_1Solver.html">caffe::Solver</a></div><div class="ttdoc">An interface for classes that perform optimization on Nets. </div><div class="ttdef"><b>Definition:</b> solver.hpp:42</div></div>
<div class="ttc" id="classcaffe_1_1AdamSolver_html"><div class="ttname"><a href="classcaffe_1_1AdamSolver.html">caffe::AdamSolver</a></div><div class="ttdoc">AdamSolver, an algorithm for first-order gradient-based optimization of stochastic objective function...</div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:131</div></div>
<div class="ttc" id="classcaffe_1_1AdaDeltaSolver_html"><div class="ttname"><a href="classcaffe_1_1AdaDeltaSolver.html">caffe::AdaDeltaSolver</a></div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:107</div></div>
<div class="ttc" id="classcaffe_1_1AdaDeltaSolver_html_a645d215770c417a00f9d38482adb2ec0"><div class="ttname"><a href="classcaffe_1_1AdaDeltaSolver.html#a645d215770c417a00f9d38482adb2ec0">caffe::AdaDeltaSolver::type</a></div><div class="ttdeci">virtual const char * type() const</div><div class="ttdoc">Returns the solver type. </div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:113</div></div>
<div class="ttc" id="classcaffe_1_1NesterovSolver_html"><div class="ttname"><a href="classcaffe_1_1NesterovSolver.html">caffe::NesterovSolver</a></div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:49</div></div>
<div class="ttc" id="classcaffe_1_1RMSPropSolver_html"><div class="ttname"><a href="classcaffe_1_1RMSPropSolver.html">caffe::RMSPropSolver</a></div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:84</div></div>
<div class="ttc" id="classcaffe_1_1RMSPropSolver_html_a3be4ffd28e5aed1e2c02c5f9225986ba"><div class="ttname"><a href="classcaffe_1_1RMSPropSolver.html#a3be4ffd28e5aed1e2c02c5f9225986ba">caffe::RMSPropSolver::type</a></div><div class="ttdeci">virtual const char * type() const</div><div class="ttdoc">Returns the solver type. </div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:90</div></div>
<div class="ttc" id="classcaffe_1_1AdaGradSolver_html_a8d1731c3c53568344ba2745e3d9aa8d9"><div class="ttname"><a href="classcaffe_1_1AdaGradSolver.html#a8d1731c3c53568344ba2745e3d9aa8d9">caffe::AdaGradSolver::type</a></div><div class="ttdeci">virtual const char * type() const</div><div class="ttdoc">Returns the solver type. </div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:70</div></div>
<div class="ttc" id="classcaffe_1_1AdaGradSolver_html"><div class="ttname"><a href="classcaffe_1_1AdaGradSolver.html">caffe::AdaGradSolver</a></div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:64</div></div>
<div class="ttc" id="classcaffe_1_1AdamSolver_html_a3ad927ab9d19ebf2fe2b8a2e9101cb3e"><div class="ttname"><a href="classcaffe_1_1AdamSolver.html#a3ad927ab9d19ebf2fe2b8a2e9101cb3e">caffe::AdamSolver::type</a></div><div class="ttdeci">virtual const char * type() const</div><div class="ttdoc">Returns the solver type. </div><div class="ttdef"><b>Definition:</b> sgd_solvers.hpp:137</div></div>
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